Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
A STUDY ON BLENDS OF LOW AND HIGH-DENSITY POLYETHYLENES - EFFECT OF MIXING TIME ON MECHANICAL, THERMAL-PROPERTIES AND OXIDATIVE-DEGRADATION
Date
1994-04-01
Author
NUGAY, N
TINCER, T
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
151
views
0
downloads
Cite This
In this study, polyethylenes of high melt flow index LDPE and a medium melt flow index HDPE were melt blended. The mechanical, thermal properties and the thermal oxidative degradation were studied as a function of four different mixing times. The results were evaluated according to the blend composition and time of mixing. The tensile strength was found to be affected mostly by mixing time as compared with the elongation at break while the modulus remained unchanged with time of mixing. The thermal oxidative degradation of the blends were found to be less than the corresponding pure components.
Subject Keywords
Organic Chemistry
,
General Physics and Astronomy
,
Polymers and Plastics
URI
https://hdl.handle.net/11511/65762
Journal
EUROPEAN POLYMER JOURNAL
DOI
https://doi.org/10.1016/0014-3057(94)90046-9
Collections
Department of Chemistry, Article
Suggestions
OpenMETU
Core
A numerical study of solidification and viscous dissipation effects on polymer melt flow in plane channels
Tutar, Mustafa; Karakuş, Ali (Walter de Gruyter GmbH, 2013-04-01)
The combined effects of solidification and viscous dissipation on the hydrodynamic and thermal behavior of polymer melt flow during the injection process in a straight plane channel of constant cross section are numerically studied by considering the shear-rate and temperature-dependent viscosity and transient-phase change behavior. A numerical finite volume method, in conjunction with a modified form of the Cross constitutive equation to account for shear rate, temperature-dependent viscosity changes and a...
A Material Perspective on Consequence of Deformation Heating During Stamping of DP Steels
ŞİMŞİR, CANER; Cetin, B.; Efe, Mert; Davut, K.; Bayramin, B. (2017-07-06)
Recent studies showed that, during stamping of high strength steels at industrially relevant production rates, local temperature in the blank may rise up to 200°C – 300°C due to deformation heating. Moreover, die temperature may also rise up to 100°C – 150°C for progressive stamping dies. Based on the common assumption that the blank softens as the temperature increases, thermal softening creates a margin in Forming Limit Diagram (FLD) and therefore the FLD determined at room temperature can safely be used ...
Multifunctional layer-by-layer modified chitosan/poly(ethylene glycol) hydrogels
Onat, Bora; Ulusan, Sinem; Banerjee, Sreeparna; Erel Göktepe, İrem (Elsevier BV, 2019-03-01)
We report the surface modification of chitosan/poly(ethylene glycol) (chitosan/PEG) hydrogel materials via layer-by-layer (LbL) technique using stimuli-responsive polymers. Water-soluble complexes of Tannic Acid (TA) and a broad-spectrum antibiotic, Ciprofloxacin (Cipro) were prepared and co-assembled at the surface of Chitosan/PEG hydrogels with poly(N-vinyl caprolactam) (PVCL). Compared to the bare hydrogels, the surface spreading and proliferation of human fibroblasts were significantly enhanced on preca...
Layer-by-layer films of block copolymer micelles with cores exhibiting upper critical solution temperature behaviour
Ustoglu, Cansu; Çağlı, Eda; Erel Göktepe, İrem (Elsevier BV, 2017-11-01)
We report on preparation of block copolymer micelles with cores exhibiting upper critical solution temperature (UCST) behavior in the range of 40-45 degrees C at pH 7.5 and incorporation of such micelles into layer-by-layer (LbL) films to obtain UCST-type milltilayer films. Pyridine units of poly(2-vinylpyridine-b-ethylene oxide) (P2VP-b-PEO) were partially quaternized and its self-assembly into micellar aggregates was achieved in the presence of potassium hexacyanoferrate (K3Fe(CN)(6)p) at pH 7.5 at either...
Comparative study on mechanical, thermal, viscoelastic and rheological properties of vulcanised EPDM rubber
Çavdar, Şeyma; Ozdemir, T.; Usanmaz, Ali (Informa UK Limited, 2010-07-01)
In this study, mechanical, thermal and rheological properties of vulcanised ethylene propylene diene monomer (EPDM) rubber containing different amounts of vulcanising agent, filler, paraffinic oil and stearic acid were compared. Moreover, reaction rate constant of the curing reaction has been calculated from the results of the rheological tests, and relative change of rate constant with the change of additives was studied by a new method. Thermal gravimetric analysis with in situ Fourier transform infrared ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
N. NUGAY and T. TINCER, “A STUDY ON BLENDS OF LOW AND HIGH-DENSITY POLYETHYLENES - EFFECT OF MIXING TIME ON MECHANICAL, THERMAL-PROPERTIES AND OXIDATIVE-DEGRADATION,”
EUROPEAN POLYMER JOURNAL
, pp. 473–477, 1994, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65762.